JRubyでHpricotのインストール

Java Ruby 
>set http_proxy=http://127.0.0.1:5865
>c:\Ruby\jruby-1.1.2\bin\gem install hpricot
JRuby limited openssl loaded. gem install jruby-openssl for full support.
http://wiki.jruby.org/wiki/JRuby_Builtin_OpenSSL
Updating metadata for 334 gems from http://gems.rubyforge.org/
................................................................................
................................................................................
................................................................................
................................................................................
..............
complete
Successfully installed hpricot-0.6-java
1 gem installed
Installing ri documentation for hpricot-0.6-java...
Installing RDoc documentation for hpricot-0.6-java...

フルパス指定しているが、

jruby -S gem install hpricotでも構わない。